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3 years ago

Factor each trinomial n^2+9n+20

Mathematics

2 answers:

Klio2033 [76]3 years ago

4 0

Answer:

(n+4)(n+5)

Step-by-step explanation:

liraira [26]3 years ago

4 0

Answer:

(n + 4)(n + 5)

Step-by-step explanation:

to factor n² + 9n + 20, we need to find 2 numbers that when multiplied together equal 20 and when added together equal 9

these two numbers are 4 and 5 so the factorization looks like this:

(n + 4)(n + 5) < you can FOIL this out to check if the solution is correct, and you would get: n² + 9n + 20

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I need help with this question pls help

Tatiana [17]

Answer:

b for top and c for botam

Step-by-step explanation:

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2 years ago

G(t)= t^2 + 3 h(t) = 4t – 3 Find (g · h)(-1)

MArishka [77]

Answer:

fifty-two. Explanation: g(h(−1 ))=g(x). x=h(−1)=4(−1)−3=−4−3=−7. g(x)= g(−7)=72+3=49+3=52.

6 0

3 years ago

Find the distance between the points (6,5√5) and (4,3√2). 2, 2√2, 2√3

FromTheMoon [43]

Answer:

D= $\sqrt{(147-30\sqrt{10}}$

Step-by-step explanation:

Here we are required to find the distance between two coordinates. We will use the distance formula to find the distance

The distance formula is given as

$D=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Here we are given two coordinates as

$(6,5\sqrt{5} ) , (4,3\sqrt{2} )$

Substituting these values in the Distance formula given above we get

$D=\sqrt{(6-4)^2+(5\sqrt{5} -3\sqrt{2}) ^2}$

$D=\sqrt{(2)^2+(5\sqrt{5})^2+(3\sqrt{2})^2-2*5\sqrt{5}*3\sqrt{2}}\\$

$D=\sqrt{4+125+18-2*15\sqrt{10}}\\D=\sqrt{147-30\sqrt{10}}\\$

Hence this is our answer

6 0

3 years ago

Five lemons cost $1.80. What is the cost per lemon?

kap26 [50]

Answer:

0.36 cents

Step-by-step explanation:

1.80/5=0.36 <----answer

To check you can do 0.36x5 and get 1.80

6 0

3 years ago

How can addition properties help me add whole numbers

Bas_tet [7]

Answer:

There are four addition properties that help to add whole numbers :

For any whole number a, b, and c ;

1. Closure property of addition - $a+b$

For example:

2+3=5

4+3=7

We can conclude that if we add any two whole number , we get another whole number.

2. Associative property of addition- when any whole number or variable are added, then that can be grouped in different way without changing result

$a+(b+c)=(a+b)+c$

For example:

2+(3+4)=(2+3)+4

3. Commutative property of addition- when any whole number or variable are added, then the order changed without changing the result.

$a+b=b+a$

For example: 2+3=3+2

4. Identity property of addition- when 0 is added to a whole number or variable , the result is the same variable or number.

$a+0=0+a$

For example: 3+0=0+3

0 is called an Identity for addition of whole numbers.

3 0

2 years ago